Monsoons are seasonal wind patterns that bring significant changes in precipitation and temperature, primarily affecting regions in South Asia, Southeast Asia, and parts of Africa and Australia. They are characterized by a shift in wind direction, typically resulting in heavy rains during the summer months when warm, moist air moves from the ocean to land. The term "monsoon" originates from the Arabic word "mausim," meaning season. Monsoons play a crucial role in agriculture and water supply in the affected areas.